Roosenburg ArticleTitle Maternal condition and nest site choice: An alternative for the maintenance of environmental sex determination Am. Other work centers on a theoretical model the Charnov — Bull model  predicted that selection should favour TSD over chromosome -based systems when "the developmental environment differentially influences male versus female fitness";  this theoretical model was empirically validated thirty years later  but the generality of this hypothesis in reptiles is questioned.
Sign In See Subscription Options. Bowden F. Shine ArticleTitle Why is sex determined by nest temperature in many reptiles? Prevot-Julliard M.
Bibcode : PLoSO The turtles were incubated at temperatures that produce solely males, both sexes, and solely females. New Jersey: Prentice Hall, Namespaces Article Talk. Journal of Evolutionary Biology.
Views Read Edit View history. Salinger S. Categories : Herpetology Sex-determination systems. Adams Jones L.
Download references. In temperature-dependent sex determination, however, it is the environmental temperature during a critical period of embryonic development that determines whether an egg develops as male or female. Shine ArticleTitle Reconstructing an adaptionist scenario: what selective forces favour the evolution of viviparity in montane reptiles?
In this species, high incubation temperature during egg development reverses genotypic males ZZ into phenotypic females; so females can be ZZ or ZW, but males are always ZZ.